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Full text of "Metallurgy Of Cast Iron"

3*2
METALLURGY   OF  CAST   IRON.
TABLE  64.—COMPARATIVE FUSION  TESTS BY  IMMERSION  OF IRONS SHOWN   IN  TABLE  63,      SEE   I'AGE   314.
	Heat No. i.	Heat No. 2.	Heat No. 3.	Pleat No. 4.	Heat No. 5.	Heat No. 6.	Heat No. 7.	Heat No. 8.
Time of immersing rolls 2%" diameter*	4:00	4:00	4:00	4:00	4:00	4:00	4:00	4:00
Time of total fusion of sand protected rolls	4:04%	4:06	4:09^	4:iolA	4:06	4:06%	4:04	4:04%
Time of total fusion of unprotected rolls	4:03	4:03^	4:02^	4-:o2%	4:03	4:°3J<	4:02%	4:°3^
Difference i n time of melting ...........	i% m.	2^2 in.	7 in.	11A in.	3111.	3# m.	i#m.	i%m.
*The time of dipping was changed to the unit of 4:00 o'clock shown so as to make the table easier of solution. The relative differences, however, were kept exactly the same as originally found.
FIG.   58.
FIG.   59.	Wash.	Wash.	Wash.	Wash.	Soda.	SoĞla.